Burner.



R. E. CAMPBELL.

BURNER.

APPLICATION FILED IuNE 30.1915.

Patented Apr. 18, 1916.

A'rrDHsEY TNB COLUMNA PLANOGRAPH co.. WASHINGTON. D. C.

ing at Berkeley,

ROBERT EDGAR CAMPBELL, OF BERKELEY, CALIFORNIA.

BURNER.

To all whom it may concern Be it known that I, ROBERT EDGAR CAMP- BELL, a citizen of the United States, residin the county of Alameda and State of California,lhave invented new and useful Improvements in Burners, of which the following is a specification.

This invention relates to a burner, the object of the invention being to provide an improved form of burner vin which more perfect combustion is obtained and bywhich a steady pointed flame of high temperature is secured.

Another object of the invention is to provide a burner which may be adjusted to project the flame at different angles; and furthermore to provide a burner which is simple, substantial and cheap to manufacture, and easy to manipulate.

Further objects will hereinafter appear.

The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, and having reference to the accompanying drawings in which- Figure l is a perspective view of the burner. Fig. 2 is a vertical section on line 2-2, Fig. 1. Fig. 3 is a detail vertical section on line 3 3 of Fig. 1.

Referring to the drawings in detail, 2 indicates a horizontally positioned tube, in one end of which is rigidly secured a plug as at 3 provided with a threaded extension 4 and nut 5, by which it may be secured to a foot plate 6. The tube is perforated as at 7 to form a discharge opening for the gas which is admitted through the usual form of rubber tubing 8. Supported a suitable distance above the discharge opening 7 and in direct alinement with same by means of arms 9, is an internallythreaded sleeve l0, which is adapted vto receive a burner pipe 1l. The burner pipe is externally threaded and when screwed into the sleeve 10 may consequently be raised or lowered, or in other words adjusted with relation to the discharge opening 7.

In operation it is only necessary to turn on the gas thus permitting it to flow through tube 8 and pipe 2 from where it will discharge through opening 7 The gas thus discharged enters the lower end of the burner pipe 11, producing an injector action, which causes a certain volume of air to be drawn in around the lower end of the tube to become mixed with the entering gas.

specification of Leners Parent.

The gas when ignited at the upper end of the' tube forms a contracted, pointed double cone flame of high temperature, very similar to the flame produced in a blow torch, that is the combustion is so perfect that the temperature is very high, and the flame is at the same time so steady that it will not waver `or spread out by the action of draft 0r air currents in motion. The volume of air admitted together` with the gas at the lower end of the tube may be regulated to a nicety by raising or lowering thel burner tube within the sleeve 10. A perfect mixture may in this way be obtained, as the column admitted is not only controlled, but is at the same timeevenly mixed for the simple reason that a complete unobstructed annular `opening is provided for the admission of air.

Avburner constructed as here shown is particularly useful in connection with dental work and other fine arts, and is therefore preferably adjustablek to permit the burner pipe to be set at various angles,such as indicated at 12. 'The flame maythus be projected to any desired point or angle without disturbing the action of the gas at themixing point.

In actual practice, it has been found advantageous to slightly lile or flatten the surface of the tube at a point surrounding the discharge opening 7 as this permits a better jet action.

While the burner is here shown as being adjustable with relation to the foot plate or base 6, it will be understood that it may be stationary or any other form of base may be provided without materially changing the construction of the present burner. The

materials and finish of the several parts of the burner, are otherwise such as the judgment and experience of the manufacturer may dictate.

I wish it understood that various changes in form, proportions and minor details of construction may be resorted to within the scope of the appended claims, and that I do not wish to limit myself to the specific design and construction here shown.

Having thus described my invention, what I claim and desire to secure by Letters Patentv isl. In combination with a burner and a gas supply pipe carrying same, a plate connected to one end of the pipe and set on edge whereby the other end of the pipe and the Patented Apr. 1s, 1916.

Application led June 30, 1915. Serial No. 37,335.

lower plate edge.

Q3. `Iii-combination with 'a gas supply pipe carrying a burner and adapted to havel one end seat on a support, means connected to the other end of the pipe for supporting the l burner in substantially vertical position when said meansand theirst named the pipe seat on a surface.- v

4. In combination `with a gas supply pipe having a threaded extension on one end end of thereof and a burner carriedl by the p ipe, a

plate set on edge and having an opemngto receive said extension, and a nut on the eX- tension abutting the plate.

5'. 1n combination with a gas supply pipe and a burner thereon between the'pipe ends,

a plate set on edge and connected to one end of the pipe at a point approximately central of the length of the plate, the lower plate edge and the other end of the pipe being adapted for seating on asurface whereby to i vertically support the burner at a point be- Copies of this patent may heobtained for five cents each, byl addressing the tween thepoints of seating'of the plate and said other end of the pipe.

6. In combination with a gas supply pipev and a burner thereon, a plug secured in one f end of the pipe to close the latter and having` a threaded extension, a vertical plate abutting said end of the pipe and having an opening central of its length to `receive'said extension, and av nut on the extension abutting the plate. v Y

.7. In combination-with a gas supply pipe carrying a' burner and having one end adapted to seat on asupport, means connected to a point adjacent the other' endv of the vpipe and adapted to seat on the support and to be held in a vertical position byfsaid pipe.

y8. In combination with an elongated vertical plate, a vgas supply pipe connected lat one end to approximately the center of the plate and having a burner, the lower edge of the plate and the other end of the pipe being adapted to seat on a surface to hold ther burner substantially vertical, and means to allow the pipe and burner to be rotated so as to permit the burner to assume varying angular relations to the surface. In testimony whereof I have hereunto s t my hand in the presence of two subscribing witnesses. p

' ROBERT EDGARV CAMPBELL. Witnesses: l

MILDRED BURNETT, 'LAURA JACKSON.

- Washington, D. C??

Commissioner of Patents.` 

